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Find the positive solution of the equation.

8x^((3)/(2))+25=4121
Answer:

Find the positive solution of the equation.\newline8x32+25=4121 8 x^{\frac{3}{2}}+25=4121 \newlineAnswer:

Full solution

Q. Find the positive solution of the equation.\newline8x32+25=4121 8 x^{\frac{3}{2}}+25=4121 \newlineAnswer:
  1. Subtract 2525: Subtract 2525 from both sides of the equation to isolate the term with the variable.\newline8x32+2525=4121258x^{\frac{3}{2}} + 25 - 25 = 4121 - 25
  2. Calculate result: Calculate the result of the subtraction on the right side of the equation.\newline8x32=40968x^{\frac{3}{2}} = 4096
  3. Divide by 88: Divide both sides of the equation by 88 to solve for x32x^{\frac{3}{2}}.\newline8x328=40968\frac{8x^{\frac{3}{2}}}{8} = \frac{4096}{8}
  4. Calculate result: Calculate the result of the division on the right side of the equation.\newlinex32=512x^{\frac{3}{2}} = 512
  5. Recognize power: Recognize that 512512 is a power of 22, specifically 292^9.\newline512=29512 = 2^9
  6. Write equation: Write the equation with x32x^{\frac{3}{2}} as 292^9.\newlinex32=29x^{\frac{3}{2}} = 2^9
  7. Raise to power: To solve for x, we need to raise both sides of the equation to the power of 23\frac{2}{3} because (32)(23)=1\left(\frac{3}{2}\right) \cdot \left(\frac{2}{3}\right) = 1.\newlinex=(29)23x = (2^9)^{\frac{2}{3}}
  8. Simplify exponent: Simplify the exponent on the right side by multiplying the exponents.\newlinex=2923x = 2^{9 \cdot \frac{2}{3}}
  9. Calculate exponent: Calculate the exponent on the right side.\newlinex=26x = 2^6
  10. Recognize value: Recognize that 262^6 is equal to 6464.\newlinex=64x = 64

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